Philippians 4:6-7New American Standard Bible (NASB)

6 Be anxious for nothing, but in everything by prayer and supplication with thanksgiving let your requests be made known to God.7 And the peace of God, which surpasses all [a]comprehension, will guard your hearts and your minds in Christ Jesus.

Ephesians 2:8-10 (KJV) 8For by grace are ye saved through faith; and that not of yourselves: it is the gift of God: 9Not of works, lest any man should boast. 10For we are his workmanship, created in Christ Jesus unto good works, which God hath before ordained that we should walk in them.